Match the following:

Column I	Column II
(a) Climax community	(i) The entire sequence of communities that successively change in a given area.
(b) Sere	(ii) Medium water conditions
(c) Pioneer species	(iii)  A community that is in near equilibrium with the environment
(d) Mesic condition	(iv) The species that invade a bare area.

• A

  (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

• B

  (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)

• C

  (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

• D

  (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)